Route single host internet traffic via IPSEC remote gateway

Hello,

I've set up a s2s IPSEC tunnel beween 2 UTM9

Site 1 - 10.0.0.0/24 (UTM=10.0.0.1)

Site2 - 192.168.0.0/24 (UTM=192.168.0.1)

Both sites can see each other perfectly.

What i would like to do is have internet bound traffic from 10.0.0.4 routed over the ipsec tunnel and out via the gateway on the remote side.

I have tried configuring this in Policy routes, but it's not working for me.

Any pointers?

Thanks